MSN15 and MSN17 are the newer models with extended frequency range up to 200 MHz which covers not only EMI on power lines and ground, but also majority of power line communication (PLC) standards. Both MSN15 and MSN17 are certified for IEC61010-1 (Third Edition), 2010; IEC 61010-2-031.
MSN15 and MSN17 are models for basic EMI measurements on AC power and ground.